sparky's answers 2003 chevrolet trailblazer, changing the rearthis 2003 chevrolet trailblazer had a loud ticking noise coming from the rear of the vehicle on the passenger side in the last post i showed how to remove

i have a 2004 chevy trailblazer the fan will not work on settingso try for the fuses first, and the blower resistor for the high speed fan operation, and a scan tool for the actuator not changing the mode doors for air